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Dr. William J. Collins, MD
NPI1104892074
- Part D claims, 2019
- 27
- Publications
- 2
- Industry payments
- $115
- Insurance carriers
- 3
- State license
- 1
- Practice address
- 1201 W La Veta Ave, Orange, CA 92868-4213
- Practice phone
- Call (714) 639-3363
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Collins' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William J. Collins is a gastroenterologist in Orange, California
Dr. Collins practices in Orange, California.
Dr. Collins' NPI, 1104892074, was assigned on February 28, 2006. Dr. Collins graduated from Indiana University School Of Medicine in 1965. Dr. Collins' California license number on file is C33697.
NPI and contact details
- NPI
- 1104892074NPI Registry (opens in a new tab)
- NPI enumeration date
- February 28, 2006
- NPI status
- Active
- Practice phone
- (714) 639-3363
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1965
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. William J. Collins' practice address is in Orange, California
Dr. Collins' practice address in the NPI Registry is 1201 W La Veta Ave, Orange, CA 92868-4213. The practice phone is (714) 639-3363.
- NPI Registry address1201 W La Veta Ave, Orange, CA 92868-4213Phone(714) 639-3363
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. William J. Collins' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Collins practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Collins' practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William J. Collins is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Collins' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Collins is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Collins has a license on file in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Gastroenterologists near Dr. Collins
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William J. Collins' patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Collins' median patient age at 72, with 100% women.
Dr. Collins' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. William J. Collins wrote 27 Medicare Part D claims in 2019
In 2019, Dr. Collins wrote 27 Medicare Part D claims. They cover 2 drugs, with $7,938 in total drug cost. In 2018, CMS named 52 claims across 3 drugs.
Part D claims, 201927
Drugs named by CMS2
Total drug cost$7,938
Dr. Collins' most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 522019: 2748%
Drugs named by CMS: 2 in 2019, 3 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William J. Collins has 2 publications on record
Dmand AI links 2 papers to Dr. Collins in 2015. Dr. Collins' most frequent co-authors are Joon Ho Lee, MD and Robert Robbins, MD.
Papers2
Dr. Collins' most frequent co-authors
Recent publications by Dr. Collins
See who Dr. Collins researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Collins works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William J. Collins received $115 in industry payments from 2016 to 2021
CMS Open Payments shows 2 general payments to Dr. Collins from 2 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $90.
General payments to Dr. Collins by program year, 2016 to 2021
Companies that paid Dr. Collins the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William J. Collins graduated from Indiana University School Of Medicine
Dr. Collins graduated from Indiana University School Of Medicine in 1965.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. William J. Collins accepts plans from 3 insurance carriers
Dr. Collins is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
Plan types Dr. Collins accepts, by number of carriers
- Medicare3
- PPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. William J. Collins's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William J. Collins
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William J. Collins' NPI number?
Dr. William J. Collins' NPI number is 1104892074. It was assigned on February 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William J. Collins?
Dr. William J. Collins is a gastroenterologist in Orange, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. William J. Collins practice?
Dr. Collins practices at 1201 W La Veta Ave, Orange, CA 92868-4213.
What is Dr. William J. Collins' office phone number?
The practice phone on file for Dr. Collins is (714) 639-3363.
What is Dr. William J. Collins' medical license number?
Dr. Collins' California license number on file is C33697.
Is Dr. William J. Collins board certified?
Yes. Dr. Collins is board certified in gastroenterology by the American Board of Internal Medicine.
Where did Dr. William J. Collins go to medical school?
Dr. Collins graduated from Indiana University School Of Medicine in 1965.
What drugs does Dr. William J. Collins prescribe most?
In 2019 Medicare Part D data, Dr. Collins' most prescribed drugs by claims were Benazepril HCl and Tikosyn.
Has Dr. William J. Collins received payments from drug or device companies?
CMS Open Payments shows $115 in general payments to Dr. Collins from 2 companies from 2016 to 2021. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. William J. Collins been practicing?
Dr. Collins graduated from medical school in 1965, 61 years ago.
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Does Dr. William J. Collins do research?
Dmand AI links 2 publications to Dr. Collins.
Who does Dr. William J. Collins publish with?
Dr. Collins' most frequent co-authors are Joon Ho Lee, MD (1 shared paper) and Robert Robbins, MD (1 shared paper).
What insurance does Dr. William J. Collins accept?
Dr. Collins is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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